His death certificate states 1832 as year of birth.
Dzwierzuty, Szczytno, Poland was known as Mensguth, Kreis Ortelsburg, East Prussia.
He owned an inn in Briesen, West Prussia which is now known as Wabrzezno, Poland.
He emigrated to the USA with his second wife and according to Klaus Kaminsky "by sailing ship, via Cape Horn".
He was a merchant and owned a dry goods and clothing store.
He was naturalised in 1868.
In the United States federal census taken on 29 June 1880 in Gervais, Marion, Oregon, enumeration 84 page 210 it gives his age as 49.
He and his children were still living in Gervais, Marion County, Oregon in 1882.
An 1884 map of Cheney shows "M Kaminsky & Son, General Merchandise, First st., cor. F".
From The Rockford Enterprise, Rockford, Spokane County, Washington Territory, 24 September 1887:
"Saul Kaminsky is running a fruit store at Spokane Falls. Louis Kaminsky is in charge of their business at Oakesdale, while Herman expects to leave for the Oregon Short Line. The big store in Cheney will be in charge of M. Kaminsky. An enterprising family."
The Spokane City directory for 1890 lists M Kaminsky & Co at 516 W 2d Spokane Falls, WA and together with William Wolfe for M Kaminsky & Co at Granite block Riverside avenue s w corner, Spokane Falls, WA selling "dry goods, clothing, carpets, gents furnishing goods, boots and shoes and grocers".
The Spokane directory for 1893 lists him as living at 1315, 3rd Avenue.
His household is enumerated in Multnomah County, Oregon in the 1895 census.
The City of Portland death records give 'dropsy of heart' and 'old age' as the cause of death.